A reaction occurs in which carbon combines with sulfur to form carbon disulfide. Is this a chemical reaction or a nuclear reaction, and how do you
know?
A. This is a chemical reaction, because mass was not conserved.
B. This is a chemical reaction, because only the electrons were
rearranged.
C. This is a nuclear reaction, because mass was conserved.
D. This is a nuclear reaction, because there was a change in the
atoms' nuclei.

it would be c. xylem.

idk lol use google m8

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.